ML20137J202
| ML20137J202 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 07/26/1984 |
| From: | TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML17198A292 | List:
|
| References | |
| FOIA-85-59 QI-QP-11.0-4, NUDOCS 8512020563 | |
| Download: ML20137J202 (7) | |
Text
{{#Wiki_filter:_ r l INSTRUCTON ISSUE b TEXAS UTILITIES GENERATING CO. NUMBER AEVISION DATE PAGE O CPSES QI-QP-11.0-4 3
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I j'Y SUMMER CONCRETE OR l APPROVED BY; # 4 M + [ M 2 k ME MORTAR CURING INSPECTION ? #- f~' M, DATE APPROVED BY; ohf1 / I fM 7-h -W "'i '/~ /j DATE i 1 l 1.0 PEFERENCES 1-A G&H Specification 2323-SS-9 " Concrete" FOR INFORMAT10H DNLY 1-B ACI-301-72, Chapter 12 and Chapter 14 i 1-C QI-QP-11.0-3, " Concrete or Mortar Placement Ins pection" I i 1-D QI-QP-11.0-5, " Inspection of Concrete Repair" j 1-E QI-QP-11.0-6, " Inspection of Grouting" i t 1-F CCP-40, " Protective Coating of Concrete Surfaces" 1-G CP-QP-18.0, " Inspection Report" j 2.0 GENERAL g g.y, 7-{.p " P " " l v e.,.. 5-2.1 PURPOSE /, 'c-'. ' - La To outline the inspection requirenents to be used while perfonning concrete summer curing in safety related structures in order to verify, inspections i compliance to Reference 1-A and 1-B. I 2.2 SCOPE This instruction shall be used to supplement concrete curing requirements as specified in Reference 1-C, 1-D and 1-E. 2.3 DEFINITION 2.3.1 Concrete Sure.mer Curing i Concrete summer curing shall imply the curing of concrete, I mortar, grout, dry pack and commercial non-shrink grout that do not fall under the definition of " cold weather concreting." O p S$k2 So$f %',.Lk_ T60 CARDE85-59 gg i ~" g, 1 C 33C 1 L J- ^
( ([ (.v.. INSTRUCTION ISSUE TEXAS UTILITIES GENERATING CO. DATE N 'CPSES E.,.:,.nA 2 of 5 V QI-QP-11.0-4 3 uJ W l i 3.0 INSTRUCTION 3.1 ACCEPTABLE CURING-ETHODS 3.1.1 Surfaces Not In Contact With Foms j For surfaces not in contact with foms, verify that one of the following methods is put into effect immediately after placement: i a.- Ponding or continuous sprinkling i i b. Absorbent mats kept continually wet c. Sand kept continuously wet d. Continuous steam (not exceeding 150*F) or spray mist e. Waterproof sheet material g f. Curing compound if approved by Engineer 3.1.2 Surfaces in Contact with Foms i Metal foms and/or wood foms in contact with placement . surface are acceptable for moist curing, provided they are not exposed to heating by the sun. If forms are exposed to heating by the sun, they must be kept wet until they can be safely removed. After fom removal, the concrete shall be cured per section 3.1.1'of this instruction. 3.1.3 Chance in Curina Methods I i Any acceptable curing method may be, replaced by one of the others after the placement is 24 hours old, provided the placement is not allowed to become surface dry during the transition. 3.2 - CURING INSPECTION REQUIREMENTS l 3.2.1 Containment Exterior Walls & Foundation Mats in Excess of 2'6" a. Verify that placement su rfaces are protected fram premature drying. b. Verify that construction joints are kept continuously wet. c. The method of curing empl'oyed must ccntain moisture withing the placement for 14 days. -= + - - ~, - +. w w. -m -vi.-T- ,e ..ar rg __eg. py--- .---9
U-( INSTRUCTION ISSUE RNSION PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO. .O CPSES Q I-Q P-11.0-4 3 El. 2 01984 3 of 5 d. Verify that forms and exposed surfaces are kept wet for the first 48 hours after placing and any time during the curing period when the ambient temperature is above 90*F. 3.2.2 Other Placements Requiring Seven Day Minimum Cure a. Placement su rfaces must be protected from prematu re drying. b. Construction joints must be kept continuously we t. c. The method of curing employed must maintain moisture within the placement for 7 days unless otherwise directed by the engineer. d. The rate of air temperature change ~ immediately adjacent to the placement must not exceed 5'F in any one hour or 50*F in any 24 hours. 3.2.3 Field Cured Cylinders f Veriiy that field cured cylinders are placed in or on the structure as near to the point of use as postible, and l .w receive the same protection and curing as the placment they represent. 3.2.4 Surface Temperature Requirenents There are no specific temperature limits, and no placement surface tenperature will be taken. 3.2.5 Protection From Mechanical Injury s a. During the curing period, verify that placement is not subjected to load stresses, heavy shock and excessive vibration. b. Verify that finished surfaces receive adequate protection from materials and equipment. 3.2.6 Curing of Commercial Non-Shrink Grout Curing shall be in accordance with manufacturer's written instructions per Reference 1-E nr as noted in this instruction if no specific instructions are given by the manuf actu rer. 4
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L: Ql INSTRUCTION ISSUE REVISION PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO. /] CPSES -h-QI-QP-11.0-4 '3 JUL 2 615.9 4 of 3 3.2.7 Curing of Surface Defect (Cosmetic Repair) An in-process monitor of routine surface defect curing is not required by the Civil QC Ins pectors. The total re-spensibility of assuring proper curing methods are used per ' site requirenents shall rest upon the responsible craft superintendants. Abandoned expansion anchor hole patches do not. require curing. For. use of curing compound in the Reactor Building, see Reference 1-F. 3.3 DOCUMENTdTION IETH005 3.3.1 ' Daily Inspection ' Verification The QC Inspector will verify on a daily basis that inspectica requirements.as set forth in this instruction are being met by initialing and dating Figure 1. At the end of the required curing period, he will sign this form and submit it in accordance with Reference 1-G. k b
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~. INSTRUCTION ISSUE RNSION NUMBER DATE PAGE TEXAS UTILITIES GENERATING CO. (). CPSES ~ g
- U QI-Q P-11.0-4 3
6 5 of 5 l FIGURE I -j I l Pege et DAILY CURIWC VERIFICATION Four No: Structures Four Date Flecement Temp. Ratise Type of Cure: ' Time of yorm Removal: Thermometer Not EXTDOED C11 RING g W.E:1 AFFLICA5f.E DAY 2 3 4 5 6 7 8 9 to 11 12 13 14 INITIALS l DATE 1 Nece: When curing esapeaed ie used, check integrity of application by wetting eurface with teter. If the water forms droplets or beads, the curing Isla is adequate. Coneents e D.c. .... I t.e g e non, m, moco CA i
AUG 171984 p-Civil / Structural Allegt. tion Rtview C.teg rica _f.. Cttegory Est. Mandays Allegation ' Package Assigned Schedule No. Subject to Complete Nos. Prepared to Open Close Remarks 1 Inadequate materials 6 V AC-16. AC-19 AC-20, { Philleo 8/17/84 h AC.-g Devers used in concrete AC-21 AC-27 j 2 Concrete placements 6 V AC-22. AC-23 f 4C-YD 3 Philleo/ 8/17/84 Devers ~ 3 Poor weather conditions V7 AC-24 AC-35 1 Philleo/ 8/17/84 placement of concrete Devers 4 Concrete voids / cracked / 9 AC-25 AC-32, AC-34 Philleo/ 8/31/84 crumbled DC-008 DC-009, AC-28, 7 Devers I AC-33 5 Miscellaneous concrete 10 AC-26 AC-31 AC-36,h(-4f {', Philleo/ 8/23/84 l Devers 6 Rebar improperly installed / 12 AC-30. AC-37, AC-38 Hofmayer/ 8/31/84 or omitted DC-003, AC-39. DC-004 Q Tapla/ AQC-12. DC-005, 4c.g I Langowski AQC-10 l Hofadyer/ 8/17/84 [- 7 Concrete - Undocumented 7 activity / rework Tapia/ Langowski '!9
- AQC-1. AQC-2. AQC-3, 6
Hofmayer/ 8/17/84 l 8 False / wrong documents AQC-7 j AAC-46, Aec-T) Tapia/ Langowski i. 9 QC Inspector training I7 AQC-9 ) Hofmayer/ 8/23/84 and qualifications Tapia/ 'O .Langowski 4 10 Improper testing 6 V AQC-4. AQC-5 AQC-6 Philleo/ 8/17/84 '] AQC-8. AQC-11 AC-9g Devers
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AUG 171984 y << Civil /Structurni A11cgetion Review Cate girim Category Est. Handays Allegation Package Assigned Schedule No. Subject to Complete Nos. Prepared to Open Close Remarks 1 Inadequate materials 6 V AC-16. AC-19. AC-20 { PhiJ1eo/ 8/17/84 used in concrete AC-21. AC-27j M Ac.-j-7 Devers 2 Concrete placements 6 V AC-22. AC-23 f(t-r0 3 Philleo/ 8/17/84 Devers 3 Poor weather conditions V7 AC-24. AC-35 4. Philleo/ 8/1'7/84 placement of concrete Devers o 4 Concrete voids / cracked / 9 AC-25. AC-32. AC-34 Philleo/ 8/31/84 crumbled DC-008. DC-009 AC-28, 7 Devers AC-33 5 Miscellaneous concrete 10 AC-26. AC-31. AC-36 4-4f K Philleo/ 8/23/84 j Devers 6 Rebar improperly installed / 12 AC-30. AC-37. AC-38 Hofmayer/ 8/31/84 or omitted DC-003, AC-39. LC-004 -Q Tapia/ AQC-12. DC-005, Ac.-q l Langowski AQC-10 l Hofadyer/ 8/17/84 7 Concrete - Undocumented 7 activity / rework Tapia/ Langowski !*9
- AQC-1. AQC-2. AQC-3.
6 Hofmayer/ 8/17/84 8 False / wrong documents AQC-7 j AEC-46, AaC-5') Tapia/ Langowski ./ 7 AQC-9 ) Hofmayer/ 8/23/84 9 QC Inspector training and qualifications Tapia/ O Langowski 10 Improper testing 6 V AQC-4. AQC-5. AQC-6 Philleo/ 8/17/84 AQC-8. AQC-11, 4C-9g Devers s 4 PtSIA-8T59 CJ 340
Civil /Struct~rmi Allegation Review Categori~1 (continued) '~ ~ s.-.... 'a Est. Mandays Allegation Package Assigned Schedule No. Subject to Complete Nos. Prepared to Open Close Remarks Category l Hofmayer/ 8/23/84 11 Seismic designs / 8 AC-41 Tapia/ construction Langowski ~ I Philleo/ 8/17/84 12 Concrete construction 6 d AC-29 Devers and deficiencies / tolerances 8/17/84 Philleo/ 'h 13 Cracks in conctete pack 6 AC-44 Devers beneath the reactor vessel l Hofmayer/ 8/31/84 ~ 15 AE-17 14 control room area Tapia/ deficiences Langowski l Hofmayer/ 8/17/84 10 AC-40, AQC-13. AQC-14 7 Rebars improperly 15 AQC-15. AC-18 ' ' ' Svm l drilled Langowski d8 AQ-64 l Hofmayer/ 8/17/84 16 . Excavation / backfill Tapia/ Longowski h;(, AQC-45 j 17 Concrete sampling 9 4T SC t a e}}